<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item> 
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card class="box-card">
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="10">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList" >
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>    
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click = "addDialogVisble = true">添加用户</el-button>
                </el-col>
            </el-row>
        
            <!-- 用户列表区域 -->
            <el-table :data="userList" stripe>
                <!-- 索引列 -->
                <el-table-column type ="index" label="#"></el-table-column>
                <el-table-column prop="username" label="姓名"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column label="状态"><!-- porps = "mg_stats"会被后面覆盖所以不用写 -->
                    <!-- 作用于插槽 -->
                    <template slot-scope="slotprops"> 
                        <!-- {{slotprops.row   获得这一行的所有数据}} -->
                       <el-switch v-model="slotprops.row.mg_state" @change = "userStatsChange(slotprops.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作">
                    <!-- 作用于插槽渲染操作-->
                    <!-- eslint-disable-next-line -->
                    <template slot-scope="slotprops">
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini"
                        @click = "showEditDialog(slotprops.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini"
                        @click="deleteUser(slotprops.row.id)"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip  effect="dark" content="分配角色" placement="top-start" :enterable = "false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(slotprops.row)"></el-button>
                        </el-tooltip>    
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange"    @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1,2,5,10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
            </el-pagination>
        </el-card>

        <!-- 添加用户对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisble" width="50%" @close ="addDialogClose">
            <!-- 内容主题区域 -->
            <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="ruleForm.username"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="ruleForm.email"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="ruleForm.password"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="ruleForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部按钮区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisble = false">
                    取 消
                </el-button>
                <el-button type="primary" @click="addUser" >
                    确 定
                </el-button>
            </span>
        </el-dialog>
        <!-- 修改用户对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close = "editDialogClose">
            <span>
                <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                    <el-form-item label="用户名">
                        <el-input v-model="editForm.username" disabled></el-input>
                        
                    </el-form-item>
                    <!-- 有校验规则就有prop -->
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="editForm.email"></el-input>
                    </el-form-item>
                     <el-form-item label="电话号码" prop="mobile">
                        <el-input v-model="editForm.mobile"></el-input>
                    </el-form-item>
                </el-form>    
            </span>
            <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible=false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
         </span>
        </el-dialog>

         <!-- 分配角色对话框 -->
        <el-dialog title="分配角色" :visible.sync="setDialogVisible" width="50%" @close = "setRoleDialogClose">
           <div>
               <p>当前的用户:{{userInfo.username}}</p>
               <p>当前的角色：{{userInfo.role_name}}</p>
               <p>
                   <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in roleList" :key="item.id" :label="item.roleName"
                        :value="item.id">
                        </el-option>
                    </el-select>
               </p>

           </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setDialogVisible = false">取 消</el-button>
                <el-button type="primary"  @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>

export default {
    data:function() {
        return{

            // y验证邮箱的规则
               checkEmail: (rule,value,cb )=>{
                let reg = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
                if(reg.test(value)){
                    //合法的邮箱
                    return cb()
                }
                    cb(new Error("请输入合法邮箱"));
                
            },
            //验证手机号的规则
            checkMobile  : (rule,value,cb)=>{
                let reg = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
                if(reg.test(value)){
                    //合法的手机号
                    return cb()
                }
                    cb(new Error("请输入合法手机号"))
                
            },
            // 获取用户列表的参数对象
            queryInfo:{
                /* 搜索关键字 */
                query:'',
                /* 当前页数 */
                pagenum:1,
                /* 当前每页显示多少数据 */
                pagesize:2
            },
            //用户列表
            userList :[],
            total:0,
            // 控制添加对话框的显示和隐藏
            addDialogVisble:false,
            // 控制修改用户对话框的显示和隐藏
            editDialogVisible:false,
            // 控制分配角色对话框的显示和隐藏
            setDialogVisible:false,
            // 添加用户的表单数据
            ruleForm :{
                username:"",
                password:"",
                email:"",
                mobile:"",
            },
            //验证规则
            rules:{
                username :[
                     { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                    {required: true, message: '请输入密码', trigger: 'blur' },
                     { min: 6, max: 10, message: '长度在 6 到 10 个字符', trigger: 'blur' },
                ],
                email:[
                    {required: true, message: '请输入邮箱', trigger: 'blur' },
                    // { validator: checkEmail, trigger: 'blur' }
                ],
                mobile:[
                     {required: true, message: '请输入手机号码', trigger: 'blur' },
                    //  { validator: checkMobile, trigger: 'blur' }
                ]
            },
            //查询到的用户数据对象
            editForm :{
                username:'',
                email:'',
                mobile:''
            },
            // 就该表单验证规则
            editFormRules:{
                email:[ 
                    {required: true, message: '请输入邮箱', trigger: 'blur' },/* { validator: checkEmail, trigger: 'blur' } */],
                 mobile:[
                     {required: true, message: '请输入手机号码', trigger: 'blur' }]
            },
            //需要被分配角色的用户信息
            userInfo:{},
            // 所有角色数据列表
            roleList:[],
            //已选中的id值
            selectedRoleId:''
        }
    },
    created:function(){
        this.getUserList();

    },
    methods:{
        /* 获取用户列表 */
        getUserList: async function(){
            const {data:res} = await this.$http.get('users',{params:this.queryInfo});
            console.log(res);
            if(res.meta.status !==200){
                return this.$message.error('获取用户失败!')
            }else{
                this.userList =res.data.users;
                this.total =res.data.total
                // console.log(res.data.users);
            }
        },
        /* 监听pagesize改变的事件 */
        handleSizeChange:function(val){
            console.log("每页"+val + "条");
            this.queryInfo.pagesize = val;
            this.getUserList();
        },
        /* 监听页码值改变的事件 */ 
        handleCurrentChange:function(val){
            console.log(`当前页: ${val}`);
            this.queryInfo.pagenum = val;
            this.getUserList();
        },
        /*监听switch状态的改变  */
        userStatsChange: async function(val){
            console.log(val);
            const {data:res} =await this.$http.put(`users/${val.id}/state/${val.mg_state}`)
            // console.log(res);
            if(res.meta.status !==200){
                res.meta.status = !res.meta.status;
                return this.$message.error("更新用户状态失败！")
            }else{
                 this.$message.success('更新用户状态成功')
            }
        },
        /*  监听添加用户对话框的关闭事件*/
        addDialogClose:function (){
            // console.log(this.$refs);
            this.$refs.ruleForm.resetFields();
        },
         /* 点击按钮，添加新用户 */
         addUser:function(){
            //  console.log(this.$refs.ruleForm.validate);
             this.$refs.ruleForm.validate( async vaild=>{
                 if(!vaild)return
                 //可以发起网络请求
                 const {data:res} = await this.$http.post('users',this.ruleForm);
                //  console.log(res);
                 if(res.meta.status !== 201){
                     this.$message.error('添加用户失败')
                 }else{
                     this.$message.success('添加用户成功');
                     this.addDialogVisble = false;
                     this.getUserList()
                 }

             })
         },
        /* 展示编辑用户对话框 */
        showEditDialog: async function(id){
            
            // console.log(id);
            const {data:res}= await this.$http.get(`users/${id}`);
            if(res.meta.status !==200){
                return this.$message.error('查询数据失败')
            }else{
                this.editForm = res.data;
                this.editDialogVisible = true;
            }
        },
        /*  监听修改用户对话框的关闭事件*/
        editDialogClose:function(){
            this.$refs.editFormRef.resetFields();
        },
        // 修改用户内容并提交
        editUserInfo:function(){
            // 表单预验证
            this.$refs.editFormRef.validate( async vaild=>{
                console.log(vaild);
                if(!vaild){
                    return

                }else{
                    // 进行提交
                    const {data:res} = await this.$http.put(`users/${this.editForm.id}`,{
                        email : this.editForm.email,
                        mobile : this.editForm.mobile,
                    });
                    console.log(res);
                    if(res.meta.status!=200){
                        return this.$message.error("更新数据失败")
                    }else{
                        // 关闭对话框
                        this.editDialogVisible = false;
                        // 刷新数据列表
                        this.getUserList();
                        // 提示修改成功
                        this.$message.success("修改数据成功")
                    }
                }
            })
        },
        // 根据id删除丢应数据
        deleteUser: async function(id){
            console.log(id);
            const res = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(error =>{
                return error
            })
            // 如果用户确认删除返回字符串 confirm
             // 如果用户取消删除返回字符串 cancel
            console.log(res);
            if(res != 'confirm'){
                 return this.$message.info('已经取消删除！')
            }else{
                const {data:res}= await this.$http.delete(`users/${id}`);
                if(res.meta.status !=200){
                    this.$message.error('删除失败！')
                }else{
                    this.$message.success('已经删除！');
                    this.getUserList();
                }
                
            }
        },
        // 展示分配角色对话框
        setRole: async function(userInfo){
            this.userInfo = userInfo
            //展示角色之前先获取所有角色列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status !==200){
                return this.$message.error('获取角色失败')
            }else{
                this.roleList = res.data
            }
            this.setDialogVisible = true
            
        },
        //点击按钮，分配角色
        saveRoleInfo: async function(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色')
            }else{
                const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`, {rid:this.selectedRoleId});
                console.log(res);
                if(res.meta.status!==200){
                   
                    return this.$message.error('更新角色失败')
                }else{
                    this.$message.success('更新角色成功');
                    this.getUserList();
                    this.setDialogVisible = false
                }
            }
        },
        // 监听分配角色对话框关闭事件
        setRoleDialogClose:function(){
            this.selectedRoleId = '';
            this.userInfo = {}
        }
    }
}
</script>

<style lang="less" scoped>

</style>